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公开(公告)号：US11860150B2
公开(公告)日：2024-01-02
申请号：US18326049
申请日：2023-05-31
Applicant: Beijing University Of Technology
Inventor： Chao Wang , Guanyu Gong , Zhengyang Ren
CPC classification number: G01N33/42 , G01N3/24 , G01N3/32 , G01N2203/0025 , G01N2203/0073
Abstract: A method for evaluating damage-healing characteristics of paving asphalt based on energetics principle includes: obtaining a numerical integral AH of a stored pseudo strain energy required by asphalt to compensate damage-healing to loading times and obtaining local life compensation ΔN of the asphalt benefiting from damage-healing characteristics; calculating an average stored pseudo strain energy QH of the asphalt according to the following formula:
Q
H
=
A
H
Δ
N
;
and evaluating the asphalt damage-healing characteristics according to the average stored pseudo strain energy QH of the asphalt. This method is based on the evolution law of the average stored pseudo strain energy required to compensate the damage-healing to explore the damage-healing characteristics of asphalt. As a characteristic index of materials, this energy evaluation index has nothing to do with the damage state and the rest periods, but only depends on the strain load, which improves the testing efficiency.-
2.发明公开公开(公告)号：US20230384285A1
公开(公告)日：2023-11-30
申请号：US18326049
申请日：2023-05-31
Applicant: Beijing University Of Technology
Inventor： Chao Wang , Guanyu Gong , Zhengyang Ren
CPC classification number: G01N33/42 , G01N3/24 , G01N3/32 , G01N2203/0073 , G01N2203/0025
Abstract: A method for evaluating damage-healing characteristics of paving asphalt based on energetics principle includes: obtaining a numerical integral AH of a stored pseudo strain energy required by asphalt to compensate damage-healing to loading times and obtaining local life compensation ΔN of the asphalt benefiting from damage-healing characteristics; calculating an average stored pseudo strain energy QH of the asphalt according to the following
Q
H
=
A
H
Δ
N
;
and evaluating the asphalt damage-healing characteristics according to the average stored pseudo strain energy QH of the asphalt. This method is based on the evolution law of the average stored pseudo strain energy required to compensate the damage-healing to explore the damage-healing characteristics of asphalt. As a characteristic index of materials, this energy evaluation index has nothing to do with the damage state and the rest periods, but only depends on the strain load, which improves the testing efficiency.-
公开(公告)号：US12216108B2
公开(公告)日：2025-02-04
申请号：US18736581
申请日：2024-06-07
Applicant: Beijing University Of Technology
Inventor： Chao Wang , Zexia Zhang , Guanyu Gong , Yuye Wei
Abstract: An evaluation method for ecological performance of an asphalt-related material is provided. Firstly, working condition parameters are determined for evaluating the ecological performance of the asphalt-related material; secondly, based on the working condition parameters, a simulation test is performed on emission of asphalt-related pollutants during a preparation stage of the asphalt-related material; finally, based on a result of the simulation test, a quantitative evaluation of the ecological performance of the asphalt-related material is performed under different environmental impacts. The evaluation method is a laboratory scale simulation method based on measured pollutant emissions and various environmental impact factors, ultimately achieving laboratory scale ecological performance evaluation of the asphalt-related material, which has important reference value for green material selection of asphalt pavement.
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公开(公告)号：US20240410874A1
公开(公告)日：2024-12-12
申请号：US18736581
申请日：2024-06-07
Applicant: Beijing University Of Technology
Inventor： Chao Wang , Zexia Zhang , Guanyu Gong , Yuye Wei
Abstract: An evaluation method for ecological performance of an asphalt-related material is provided. Firstly, working condition parameters are determined for evaluating the ecological performance of the asphalt-related material; secondly, based on the working condition parameters, a simulation test is performed on emission of asphalt-related pollutants during a preparation stage of the asphalt-related material; finally, based on a result of the simulation test, a quantitative evaluation of the ecological performance of the asphalt-related material is performed under different environmental impacts. The evaluation method is a laboratory scale simulation method based on measured pollutant emissions and various environmental impact factors, ultimately achieving laboratory scale ecological performance evaluation of the asphalt-related material, which has important reference value for green material selection of asphalt pavement.
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